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Finding the Fourth Proportional to 437,561.86, 656,336.28 and 266,833.74

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Solution

The fourth proportional to 437,561.86, 656,336.28 and 266,833.74 is: 400,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,561.86 : 656,336.28 = 266,833.74 : x
  2. Step 2: Convert to fraction form
    437,561.86/656,336.28 = 266,833.74/x
  3. Step 3: Cross multiply
    437,561.86x = 656,336.28 × 266,833.74
  4. Step 4: Simplify right side
    437,561.86x = 175,132,666,626.28
  5. Step 5: Solve for x
    x = 175,132,666,626.28/437,561.86
  6. Step 6: Final answer
    x = 400,246.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.